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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 859564Generated: October 26, 2026

Trifluoroacetic acid → 4-[7-(2,4-Difluoro-phenyl)-4-oxo-4,5-dihydro-3H-benzo[b][1,4]diazepin-2-yl]-pyridine-2-carbonitrile

https://huagongshe.com/reaction/859564

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant{3-[3-(2-Cyano-pyridin-4-yl)-3-oxo-propionylamino]-2',4'-difluoro-biphenyl-4-yl}-carbamic acid tert.-butyl esterHCID 86588058—
SolventDichloromethaneHCID 6344—
Product4-[7-(2,4-Difluoro-phenyl)-4-oxo-4,5-dihydro-3H-benzo[b][1,4]diazepin-2-yl]-pyridine-2-carbonitrileHCID 9864354—

Reaction Steps

Prepared from {3-[3-(2-cyano-pyridin-4-yl)-3-oxo-propionylamino]-2′,4′-difluoro-biphenyl-4-yl}-carbamic acid tert.-butyl ester (Example K73) by treatment with TFA in CH2Cl2 according to the general procedure M. Obtained as a light yellow solid (24 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07151098B2
Source datasetuspto-grants-2006_12
ORD IDord-e76efcf90df741dcbe46c0aae737f267
Source noteuspto-grants-2006_12